Propulsion unit



1. Propulsion unit

1.1 is a top, front, and left side perspective view of a propulsion unit showing our new design;

1.2 is a front elevation view thereof;

1.3 is a rear elevation view thereof;

1.4 is a right side elevation view thereof;

1.5 is a left side elevation view thereof;

1.6 is a top plan view thereof; and

1.7 is a bottom plan view thereof.

The broken lines in the reproductions illustrate portions of the propulsion device that form no part of the claimed design. 

CLAIM The ornamental design for a propulsion unit, as shown and described. 